A method for deforming and connecting metal sheets

A metal plate and plate technology, applied in the field of plate connection, can solve the problems of easy to fall off, poor bearing capacity, easy to fall off, etc., and achieve the effect of no need for special equipment, fewer production processes, and low process requirements.

Inactive Publication Date: 2015-09-09
哈尔滨松花江汽车内饰件有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention is to solve various bottleneck problems such as poor load-bearing capacity in the thickness direction and easy to fall off existing in the connection and forming of existing metal plates, and further proposes a two-layer or multi-layer metal sheet suitable for the same or heterogeneous , Equal thickness or unequal thickness metal plate cold pressure deformation connection method, not only improves the thickness bearing capacity and reliability of the connection part, but also can avoid the occurrence of connection failure defects such as easy falling off

Method used

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  • A method for deforming and connecting metal sheets
  • A method for deforming and connecting metal sheets
  • A method for deforming and connecting metal sheets

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Experimental program
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specific Embodiment approach 1

[0034] Specific implementation mode one: as Figure 1 to Figure 4 As shown, the steps of a metal plate cold-press deformation connection forming method are: Step 1, prefabricated plates: respectively determine the end shapes of the first plate 1 and the second plate 2 according to the strength, and the first plate with a lower yield strength 1 Make convex teeth, the second plate with higher yield strength 2 Make holes, and determine the shape of the convex teeth or holes of the plate, the shape of the end of the prefabricated plate is as follows figure 1As shown (the purpose is to achieve the best self-locking effect after the convex tooth is inserted into the hole and loaded and deformed); the structural form of the end of the required connecting plate is pre-designed, and the insertion end of the first plate 1 is made into a rectangle according to the design Protruding teeth (sawtooth shape), and bending and deforming the rectangular protruding teeth upwards, so that the dis...

specific Embodiment approach 2

[0035] Specific implementation mode two: as Figure 5 ~ Figure 7 As shown, the steps of a metal plate cold-press deformation connection forming method are: step 1, prefabricated plate: according to the yield strength of the first plate 1 and the second plate 2, prefabricate holes on the second plate 2 with higher yield strength And determine the shape of the hole, the shape of the prefabricated plate joint is as follows Figure 5 As shown (the purpose is to achieve the best connection effect after loading and deformation); step 2, pre-connection: place the pre-connection part of the second plate 2 with the prefabricated hole above the pre-connection part of the first plate 1, The pre-joined two plates such as Figure 6 As shown; step 3, place the prepared sample on the press workbench: place the pre-connected first plate 1 and second plate 2 on the press workbench 4, and position them so that the connecting parts Just at the center position of the press workbench 4, so that ...

specific Embodiment approach 3

[0036] Specific implementation mode three: as Figure 8 ~ Figure 14 As shown, the steps of a metal plate cold-press deformation connection forming method are: Step 1. Prefabricate the plate: pre-design the convex teeth and groove forms at the end of the required connecting plate, and according to the design and the relationship between the yield strength of the two plates, respectively Make sure to process the protruding teeth and grooves on the first plate 1 and the second plate 2. The top view of the ends of the two plates is as follows Figure 8 , the cross-sectional view of the ends of the two plates is shown in Figure 9 (The purpose is to make it load and deform to achieve the best connection effect); step 2, pre-connection: insert the protruding teeth of the first plate 1 with prefabricated protruding teeth into the groove of the second plate 2 with prefabricated grooves , the top view after pre-connection is as follows Figure 10 , the cross-sectional view after pre-...

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Abstract

The invention provides a metal plate deforming, connecting and forming method, belongs to the technical field of metal plate connection and aims at solving various bottleneck problem that existing metal plates have poor bearing capacity in the thickness direction in connection and forming, dropping occurs easily, and the like. The metal plate deforming, connecting and forming method comprises the steps of pre-designing structural style of end portions of plates to be connected, pre-processing convex teeth, holes or grooves with certain shapes at the end portions of the plates, performing matched lap joint of the connecting end portions of two processed plates, arranging a manufactured sample on a work table of press machine, loading connecting positions with a moving-down punch to enable the sample to be subjected to plastic deformation, then maintaining pressure for a certain period of time, enabling the punch to return, taking out connected plates and finishing the connection. By means of the method, the bearing capacity and the reliability in the thickness direction of the connecting positions are improved, and the connection failure defects including dropping and the like can be avoided.

Description

technical field [0001] The invention relates to a connection method for two or more layers of the same or heterogeneous plates with equal or unequal thickness, and belongs to the technical field of plate connection. Background technique [0002] Lightweight is an important concept and development direction of automobile design and manufacturing at present. Automobile lightweight is a systematic project, including the development and application of lightweight materials, the design and optimization of lightweight structures, and the improvement of matching advanced forming technologies. And development. [0003] Plate joining is one of the effective ways to achieve lightweight in fields such as automobile manufacturing. However, due to the obvious differences in material properties and other aspects, it is difficult to formulate and apply the process. Take the connection of steel and aluminum as an example, the melting points of the two are quite different, which is difficu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D39/02B21D39/03
Inventor 李峰徐明达隋小冲边楠
Owner 哈尔滨松花江汽车内饰件有限责任公司
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